The project was originally rejected by both the BBC and Channel 4 as being too controversial. Morris suggested in a mass email, titled “Funding Mentalism”, that fans could contribute between £25 and £100 each to the production costs of the film and would appear as extras in return. Funding was secured in October 2008 from Film 4 Productions and Warp Films, with Mark Herbert producing. Filming began in Sheffield in May 2009.
Morris has described the film as a “farce”, which exposes the “Dad’s Army side to terrorism”. During the making of the film, the director sent the script to former Guantánamo Bay detainee Moazzam Begg. Begg has said that he found nothing in the script that would be offensive to British Muslims. The actor Riz Ahmed also contacted Begg, to ask whether the subject matter was “too raw”. When the film was completed, Begg was given a special screening and said that he enjoyed it.
Suggest you go see it. (Supposing you live in the UK, I don’t think it’s out in the US as of yet- can’t find any US listings) Here’s a clip from Morris’ Brass Eye.